historical tower with reliefs of the angkor what temple, 12th century khmer landmark. cambodia. unesco heritage site

12th ancient angkor apsara archeology architectural architecture artwork asia asian background buddha buddhist building cambodia cambodian castle century culture exterior gate gopuram heritage hindu historic historical indochina khmer landmark medieval monastery monument mystic old reap reliefs religion ruined ruins sandstone sculpture siem site southeast stone temple texture tower traditional unesco vishnu wall walls wat what world